Journal-bearing.



INVENTOR.

PATENTED JULY 1'7, 1906.

A. STUOKI. JOURNAL BEARING. APPLICATION FILED JANL24. 1906.

F UE

WITNESSES.

mony or other antifriction metal.

ARNOLD STUOKI, OF ALLEGHENY, PENNSYLVANIA.

JOURNAL-BEARING.

Specification of Letters Patent.

Patented July 17, 1906.

Application filed January 24, 1906. Serial No. 297,671.

To aZZ whom it may concern:

Be it known that I, ARNOLD STUcKI, a resident of Allegheny, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Journal-Bearings; and I do hereby declare the following to be a full, clear, and exact description thereof. I

This invention relates to journal-bearings for rallway-car trucks and similar purposes. Its'Ob ect is to provide a journal-bearing which 1s cheaper, lighter, easier to handle than present j ournal-bearings, and which can be more easily fitted to the wedge, but which nevertheless is equally as strong and durable as those now in use.

The invention consists in a journal-bearlng havlng on its outer or upper face reduced or cut-away portions so arranged as to leave ribs of the full height at the longitudinal center and both edges of the bearing and also at the ends and one or more points intermediate the same, which ribs give full strength and ample bearing-surface against the wedge and can be readily ground to fit the same.

J ournal-bearings forrailway-cars are constructed of phosphor-bronze or other metal suitably lined with an alloy of lead and anti- These ournal-bearings are set in the'boxes and are backed by means of wedges. Phosphorbronze is comparatively expensive; but the wedges are made of some strong but cheaper material, such as malleable iron or steel. It is the practice in many cases to cut away a part of the metal of the wedges, so that they contact with the bearings only at oints or along certain lines. The Master CEmBuilders Association has adopted shapes anddesigns which must be adhered to in a construction of these arts. The ordinary journal-bearing weigl fs approximately twentyfive pounds and at the price of the phosphorbronze is quite expensive. Furthermore, it is quiteheavy, thus adding to the dead-weight of the truck, besides being difficult to handle. It is also quite diflicult to fit to the Wedge,

inasmuch as its entire upper or outer face is.

in contact with the latter.

My invention is intended to improve j ournal-bearings of the character specified, so as to overcome the difliculties named. This is accomplished by the construction hereinafter described and claimed.

In the accompanying drawings, Figure 1 is an end view of my improved journal-bear- ,cut away, as shown at 5.

ing and the wedge, showing the box in section. Fig. 2 is a top plan view of the bearing. Fig. 3 is in part an end view and in part a cross-section on the line 3 3, Fig. 2; and Fig. 4 is a longitudinal section on the line 4 4, Fig. 2.

In the drawings the journalbox is incated in outline at 1 and the wedge at 2, the latter being of the Master Car-Builders design. The journal-bearing itself comprises a-body 3 of phosphor-bronze or some similar material having a lining 4 of tin and antimony or other antifriction material. The inner face of the j ournal-bearing is curved'or concave in the usual way, and said bearing in crosssection approximates a semitubular shape. The outer surface instead of following the contour of the inner face of the wedge, as heretofore, has portions thereof reduced or These reductions are formed by suitable cores in the casting of the bearings. The coring is done in such a way as to leave bearing ribs which contact with the wedge and which have am le bearing-surface to take the thrust of the load and at the same time being designed to have ample strength against bending and other distortions. As shown, a bearing-rib 6 is provided at the longitudinal center of the bearing and similar bearing-ribs 7 at the edges thereof, the central and sideribs being in different horizontal planes. Intermediate these ribs are other ribs 8 of less height for stifiening the thin portions of the bearing. The central rib 6 is of varying width, being wider at its middle and tapering toward its ends, so as to give practically uniform strength from end to end. The ends of the bearing likewise are provided with ribs 10, and at one or more intermediate points transverse ribs 11 are provided. The bearing will be provided with the usual flange 12.

and in general sha e will conform to the Master Car Builders esigns.

By coring the upper face of the bearing, as

shown, I effect a considerable reduction in the weight of a standard car j ournal-bearing, and as there usually are eight such bearings for each car it means a considerable saving in cost, as well as in the dead load of the truck. The wedge, however, is left of the usual shape and strength- In fittin the bearing to the wedge the contacting ri s alone need'to be ground or machined, thus making it easier and cheapening this operation in the manufacture. The inner face of the journal-bearing is concave and is left solid. This is very important, so that even if the antifriction metal should entirely Wear away there will be a full contact with the journal of the aXle.

What I claim is 1. A journal-bearing for railway-cars comprising a bearing member having on its outer face reduced or cut-away portions so arranged as to leave ribs of full height at the longitudinal center and both edges and at the longitudinal center and both edges and transversely of the bearing, said central rib tapering from its middle toward its ends and being in a diiferent horizontal plane than the side ribs.

4. A j ournal-bearing for railway-cars having on its outer face reduced or cut-away portions so arranged as to leave ribs of full height at the longitudinal center, both edges, and at the ends of said bearing, the central and side ribs being in different horizontal planes.

5. A journal-bearing for railway-cars having on its outer face reduced or cutawaypor tions so arranged as to leaveribs of full height at the longitudinal center, both edges, and at the ends of the bearing, and one or more transverse ribs intermediate its ends, the central and side ribs being in different horizontal planes. 1

6. A journal-bearing for railway-cars having on its outer face reducedor cut-away portions so arranged as to leave ribs of full height at the longitudinal center, at both edges, and at the ends of the bearing, said central rib being Wider at its middle and tapering to- Ward its ends and being in a different horizontal plane than the side ribs.

7. A journal-bearing for railway-cars having on its outer face reduced or cut-away portions so arranged as to leave center, side, end, and transverse ribs of full height, and other ribs of less height intermediate the longitudinal ribs.

In testimony whereof I, the said ARNOLD STUOKI, have hereunto set my hand.

ARNOLD STUOKI.

Witnesses:

ROBERT C. TOTTEN, G. O. RAYMOND. 

